Chute for material to be shot



Feb. 13, 1934. B. KARTHA1JSER 1,947,011

CHUTE FOR MATERIAL TO BE SHOT Filed Nov. 1932 [720672 2507 Bruno KarZ/zc iuser A Zzfarney Patented Feb. 13, 1934 UNITED STATES rarer oFFicE CHUTE FOR MATERIAL TO BE SHOT Application November 18, 1932, Serial No. 643,206, and in Germany November 13, 1931 2 Claims.

This invention relates to chutes for conveying and distributing materials, such, for example, as fuel, to receiving hoppers. In prior devices of this general character there has been a tendency of the fuels, especially when damp, to adhere to the walls of the chute and become packed to such an extent as to clog the passageway, and thus prevent a continuous flow of the fuel to the hoppers.

One object of the present invention is to construct a chute in such a manner as to prevent clogging thereof by the materials handled, and thereby insure a continuous flow of the materials at all times.

Other objects of the invention will become apparent as the description thereof progresses.

Of the drawing:

Fig. l is a sectional side View of the chute taken substantially along the line 11 of Fig. 2.

Fig. 2 is a front view of the chute comprising the present invention.

Fig. 3 is a perspective view showing the general construction of the chute.

Figs. 4, 5, 6, and '7 are sectional views taken along the lines 4-4, 55, 66, and '?'7 respectively, of 2.

Referring to the drawing, the numeral 1 designates generally the chute comprising the present invention which comprises sloping substantially conical top bottom walls 2 and 3, respectively, and diverging side walls 4 and 5. The upper portion 6 of top wall 2 is bent at a slightly steeper angle than the top wall proper, as shown in Fig. l. The upper end of the chute has secured thereto a substantially cylindrical extension 7, which constitutes the inlet passage for the chute. EX- tension '7 has provided at the upper end thereof an annular flange 8, to which a spout may be secured through which materials may be delivered to the chute from a source of supply, such, for example, as overhead coal bunkers when the device is used in connection with stoker furnaces. The lower ends of top and bottom walls 2 and 3 terminate in front and rear walls 9 and 10, respectively. These walls are inclined slightly with the vertical so as to form a downwardly diverging discharge passage.

Referring to Fig. 1, it is seen that the bottom wall 3 of the hopper makes a greater angle with the horizontal than the top wall 2, thus forming a passage which diverges downwardly. By this construction it is apparent that packing of the materials cannot occur to such an extent as to cause clogging of the passage. The bottom wall 3 which constitutes the sliding surface for the fuel is inclined at an angle somewhat greater than the angle of repose, so that constant move ment of the fuel is assured under normal conditions. The bottom wall 3 of the chute being of a substantially conical form insures a uniform distribution of the various sized particles of fuel passing through the chute, which is an additional feature the present invention.

While the chute described herein is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the embodiment shown herein since it may be embodied in other forms, all coming within the scope of the claims which follow.

What claimed is:

1. In a chute for materials, comprising sloping substantially conical top and bottom walls and diverging side walls, said top and bottom walls terminating at their lower ends in slightly inclined front and rear walls respectively, a substantially cylindrical extension provided at the upper end of said chute, and said bottom wall of said chute making a greater angle with the horizontal than the said top wall thereof whereby clogging of the chute by materials passing therethrough is prevented.

2. In a chute for materials, comprising sloping substantially conical top and bottom walls, and diverging side walls, said top and bottom walls terminating at their lower ends in inclined front and rear walls respectively, forming a downwardly diverging discharge passage, and a substantially cylindrical extension provided at the upper end of chute, said top and bottom walls of said chute also diverging downwardly, forming a passage of progressively greater depth from the top to the bottom thereof whereby clogging of the chute by materials passing therethrough is prevented. 

